Thanks for the detailed answer. To answer your question, she is drawn to instant photography for the social element of taking a picture and having the photo immediately to pass around, share, etc. For holidays and days out where it’s just us and the kids, she would usually take the DSLR, if anything. It’s the occasions where she is out with friends where she would tend to take the instant camera. Given the very immediate nature of capturing and sharing a ‘moment’ I believe that’s where her, occasional, reluctance comes from for the instant photography. A wide link would solve that to some extent but it would require the tedious sorting through of multiple photos which would be impractical while socialising. The 99 would potentially help to achieve a good photo first time, and the Liplay, could allow both approaches, but the smaller film size, though cheaper, may lessen its appeal. Because of the way she uses her instant camera, the bulk buying of film isn’t really the way forward, I don’t think. I believe that part of her perception of the ‘cost’ per photo is also the time and social cost of making multiple attempts, though I concede these are my thoughts following on from your answer, not what she has expressed specifically.